### MonoGRAF Entities. Arcs

**Arc**

You can draw an arc by one of eight different methods using the following functions of the "arc" submenu:

- 3 points on arc - draws a 3-point arc. The first and second points are the arc's endpoints and the third is any point on the arc;
- begin, center, incl.angle - draws an arc by specified start point, center point and included angle;
- begin, center, chord - draws an arc by specified start point, center point and length of chord;
- begin, end, center - draws an arc by specified start, end and center points;
- begin, end, radius - draws an arc by specified start and end points and length of radius;
- begin, end, incl.angle - draws an arc by specified start and end points and included angle;
- begin, end, tangent - draws an arc by specified start and end points and starting direction;
- continue line - draws an arc as a smooth continuation of an existing line or arc (polyline arc).

**Three point arcs**

The "3 points on arc" function draws a 3-point arc. The first and second points are the arc's endpoints and the third is any point on the arc.

PROMPTS:

- Arc start point
- Arc end point
- Any point on the arc

"The three points are co-linear"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Begin, center, included angle**

The "beg,cen,inc angl" function draws an arc by specified start point, center point and included angle.

PROMPTS:

- Arc start point
- Arc center
- Included angle

"The arc is not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Begin, end, center**

The "beg,end,center" function draws an arc by specified start, end and center points.

PROMPTS:

- Arc start point
- Arc center
- Point on the second shoulder

"The arc is not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Begin, end, included angle**

The "beg,end,inc angl" function draws an arc by specified start and end points and included angle.

PROMPTS:

- Arc start point
- Arc end point
- Included angle

"The arc is not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Begin, center, length of chord**

The "beg,cen,chord" function draws an arc by specified start point, center point and length of chord.

PROMPTS:

- Arc center
- Arc start point
- chord length

"The arc is not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Begin, end, tangent**

The "beg,end,tangent" function draws an arc by specified start and end points and starting direction.

PROMPTS:

- Arc start point
- Select point for tangent
- Arc end point

"The arc is not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

**Line/arc continuation**

The "continue line" function draws an arc as a smooth continuation of an existing line or arc (polyline arc).

PROMPTS:

- Select object
- Arc end point

"Arc not defined"

PARAMETERS available via the "params" function of the control menu:

"linetype, color, level of detail"

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